This is a perennially valid (and simple) question (as valid it was even decades ago), for which much more global concern is now constantly been raised (every year). Research is now more efficiency-focused, results (though slower than expected) are showing positive trends. Paper-less transactions, wire-to-wireless, life-without--'heavy'- manual type-writers.. are some of such welcome developments. On efficient (electrical) energy management strategies, many scholars have published their ideas/ thoughts. Some can be found from my RG-page:

[https://www.researchgate.net/publication/259644615_Changing_Energy_Scenario_in_India_A_Review?ev=prf_pub ];

[ https://www.researchgate.net/publication/259644501_Study_on_the_working_and_efficiency_of_State_Electricity_Board_(OSEB)?ev=prf_pub ]'

[ https://www.researchgate.net/publication/259483819_Energy_Environment_and_Economy?ev=prf_pub ]

Article Changing Energy Scenario in India: A Review

Article Study on the working and efficiency of State Electricity Board (OSEB)

Book Energy, Environment and Economy

Thank you Rabinarayan

https://www.interreg-baltic.eu/fileadmin/user_upload/about_programme/Natural_resources_Interreg_Baltic_Sea_Region_priority_description.pdf

http://www.health.nsw.gov.au/assets/Publications/resource-efficiency-strategy.pdf

http://www.matthey.com/about_us/divisions/efficient-natural-resources